Hi everyone. Probably a silly question, but if I have

params { input = null }

in

nextflow.config

and then I do

params { input = "/path/to/foobar.txt" }

in a profile config called

test.config

, running

nextflow run . -profile test,docker

, I get

ERROR ~ Validation of pipeline parameters failed!

followed by

* Missing required parameter(s): input

. Is this expected? I used an absolute path to

foobar.txt

so I'm sure it can find it. Also, it works just fine if I do

nextflow run . -profile test,docker --input /path/to/foobar.txt

What Nextflow version are you using? And what does your config look like? There's probably something wrong in your config order

I have noticed that in strict syntax, the order of parameter calls only takes into account the first assignment. If you want the config assignment to take priority, you must first put your profile in nextflow.config and then set the default assignment to null.

Thank you! I'm also suspecting the order of things is wrong, but I haven't managed to fix it yet. I'm on NF 25.10.2 and the config I have was generated via

nf-core pipelines create

(see ). Just a basic hello world

Are you using the strict syntax already?

Ah, yeah. That explains it... I just set

NXF_SYNTAX_PARSER=v1

and it works fine now.

Yes it's a known bug in Nextflow, it should be fixed in the next edge version 🙂

Also, the order doesn't seem to matter if I set

NXF_SYNTAX_PARSER=v1

Better to use

v1

for now 😛

Haha, I see. Thank you!

No problem 😉